Import patches-unapplied version 3.11.1-0ubuntu1 to ubuntu/trusty-proposed

Imported using git-ubuntu import.

Changelog parent: eee2bf723204ce994525ab7c0c9553e0bd2490d7

New changelog entries:
* New upstream release:
- Fix page size not being applied on some drivers
- Rewrite autosaving. Now uses files for scan data, is more efficient in
writing to disk and drops dependency on sqlite.
* debian/control:
- Drop build-depends on libsqlite3-dev